package com.gouying.web.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gouying.common.constant.ProductConstant;
import com.gouying.common.utils.PageUtils;
import com.gouying.common.utils.Query;
import com.gouying.common.utils.R;
import com.gouying.to.SkuReductionTo;
import com.gouying.to.SpuBoundTo;
import com.gouying.to.es.SkuEsModel;
import com.gouying.web.dao.SpuInfoDao;
import com.gouying.web.entity.*;
import com.gouying.web.feign.CouponFeignService;
import com.gouying.web.feign.SearchFeignService;
import com.gouying.web.service.*;
import com.gouying.web.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;


/**
 * @author ly
 */
@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService imagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService attrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

//    @Autowired
//    private CouponFeignService couponFeignService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

//    @Autowired
//    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<>()
        );
        return new PageUtils(page);
    }

    /**
     * //TODO 高级部分完善
     *
     * @param vo
     * @GlobalTransactional 适合Seata AT模式
     */
    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1、保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2、保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(), images);

        //4、保存spu的规格参数;pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        //5、保存spu的积分信息；gulimall_sms->sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
//        R r = couponFeignService.saveSpuBounds(spuBoundTo);
//        if (r.getCode() != 0) {
//            log.error("远程保存spu积分信息失败");
//        }

        //5、保存当前spu对应的所有sku信息；
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //5.1）、sku的基本信息；pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true就是需要，false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //5.2）、sku的图片信息；pms_sku_image
                skuImagesService.saveBatch(imagesEntities);

                //TODO 没有图片路径的无需保存

                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                //5.3）、sku的销售属性信息：pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                // //5.4）、sku的优惠、满减等信息；gulimall_sms->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
//                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
//                    if (r1.getCode() != 0) {
//                        log.error("远程保存sku优惠信息失败");
//                    }
                }
            });
        }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        // status=1 and (id=1 or spu_name like xxx)
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }

        String catalogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catalogId) && !"0".equalsIgnoreCase(catalogId)) {
            wrapper.eq("catalog_id", catalogId);
        }

        /*
         * status: 2
         * key:
         * brandId: 9
         * catelogId: 225
         */
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );
        return new PageUtils(page);
    }

    /**
     * 商品上架
     *
     * @param spuId
     */
    @Override
    public void up(Long spuId) {
        //准备装某个spu下的多个sku的数组
        //查出当前spuId对应的所有sku信息，以及品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkuBySpuId(spuId);
        List<Long> skuList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        //1、发送远程调用，库存系统查询是否有库存（只查询有没有就行）
        Map<Long, Boolean> stockMap = null;
        try {
//            R r = wareFeignService.getSkuHasStock(skuList);
//            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
//            };
            //将查询到的list类型库存信息转化为map类型（long skuId,boolean hasStock）
//            stockMap = r.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, SkuHasStockVo::getHasStock));
        } catch (Exception e) {
            log.error("库存服务查询异常：原因", e);
        }
        //4、按照当前spuId将所对应的多个sku（比如多个内存版本）的可以被用来检索的规格属性检索出来
        //根据spuId查询出所有sku信息
        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrlistforspu(spuId);
        //从所有sku信息中提取出所有的skuId信息
        List<Long> attrIds = baseAttrs.stream().map(ProductAttrValueEntity::getAttrId).collect(Collectors.toList());
        //再根据这些skuId信息查出其中能检索的skuId（search_type为1）
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);
        //再根据查出的sku过滤出可以被检索的属性，放入set集合中
        Set<Long> idSet = new HashSet<>(searchAttrIds);
        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream()
                .filter(item -> idSet.contains(item.getAttrId()))
                .map(item -> {
                    SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
                    // TODO 数据对拷（可以优化）
                    BeanUtils.copyProperties(item, attrs1);
                    return attrs1;
                }).collect(Collectors.toList());
        //封装信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //组装上架所需要的数据
            SkuEsModel esModel = new SkuEsModel();
            //将当前sku中的属性值copy到esModel中
            BeanUtils.copyProperties(sku, esModel);
            //设置两个名称不一样的属性的值
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
            //设置库存信息
            if (finalStockMap == null) {
                esModel.setHasStock(true);
            } else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            //2、热度评分，现在默认为0
            esModel.setHotScore(0L);
            //3、查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());
            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());
            //设置检索属性
            esModel.setAttrs(attrsList);
            return esModel;
        }).collect(Collectors.toList());

        //5、将数据发送给es进行保存：gulimall-search
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0) {
        //远程调用成功
        //6、修改当前spu的状态（publish_status字段）
        baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        } else {
            //TODO 7、重复调用？接口幂等性;重试机制

        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity skuById = skuInfoService.getById(skuId);
        Long spuId = skuById.getSpuId();
        return getById(spuId);
    }

}